Electrical connection



Sept. 14, 1948, F. J. MATAN ELECTRICAL CONNECTION Filed March 31, 1943 INVENTOR. fink J. M27490,

BY Q52 ATTORNEYS.

Patented Sept. 14, 1948 I UNITED- STATES parent I OFFICE a 2,449,496: fin-common. oonnne'rion Frank; .I: ,Matan, Gary find; Aspiicaaminamn 31, 194e,: semis... 4811342.: zoiaims. (Cl;.287;-6.4)

This invention relates tmimprovements in electrioaliconnections.

The primary object-{ohmic invention isthe vision of an improved terminal connector for electrical parts such as cables, resistors, condensers, e'tc., which will enable the formation of an electrical connection between several parts without the use of solder, welds, screws or other foreign parts and expedients.

A further object of this invention is the provision of an electrical connection comprising a pair of terminal portion having readily assembled in'terfitting conductor means.

Other objects and advantages of this invention will be apparent during the course of the following detailed description.

In the accompanying drawing, wherein for the purpose of illustration is shown a preferred embodiment of the invention, I

Figure 1 is a perspective View of an electrical part, such as a resistor, having the improved terminal connector means at the ends thereof.

Figure 2 is a fragmentary perspective view of two electrical parts such as a resistor and a condenser showing the improved terminal portions thereof interconnected.

Figure 3 is a transverse cross sectional view taken substantially on the line 3-3 of Figure 2.

Figure 4 is a cross sectional view similar to Figure 3 but showing the application of a protective lacquer or other plastic upon the terminal portions of the electrical parts at the electrical terminal connections. 7

In the drawing, wherein similar reference characters designate corresponding parts thruout the several views, the letter A may generally designate a resistor or other electrical part or appliance having the improved terminal portions I I and I2 connected thereupon. These terminal portions I I and I2 are preferably identical. Each of them consists of a thin strip or band of easily bendable sheet metal which is of course a terminal for the vital par-ts of the electrical appliance. The strips I I and I2 are preferably thin, wide and flat, altho this conformation may be departed from if found necessary. Each terminal portion II and I2, along the opposed longitudinal edges thereof, is recessed or socketed at I5, I6 and II; the recesses I5, I6 and I1 being in opposed relation as shown in Figure 1. These recesses are of uniform depth, width and height, and reduce the width of the strip to a thin section 2!] between the opposed recesses. These recesses I5, I6 and I! furthermore divide the strip into opposed sets of bendable clamping teeth or: lingers :22; ;2.3! and-124, whichare of=uniform.-thicknes s.width anddepth.

In, thehsof; ther improvedterminal portion; the electrical-1 par-tsi to be: connected; whether they; be cables; resistor-5., condensers, on other electrical appliances, are assembled so that the terminal portions of the two parts, such as shown in Figure 2, are in abutment and overlapping relation with the teeth 22, 23 and 24 of one terminal part in position opposite the recesses l1, l6 and I5 respectively of the other terminal part. The clamping finger portions 22, 23 and 24 of one terminal portion are then bent thru the recesses of the other terminal part and overlap at the opposite side of the last mentioned terminal portion and then the finger portions of the last-mentioned terminal portion are likewise bent thru the recesses of the first terminal portion and clamped at the opposite side of the said terminal portion. The finger portions are thus overlapped at opposite sides of the thin strips 25, in the manner shown in Figure 2. This insures that the two electrical parts, such as a resistor and condenser A and B respectively, as shown in Figure 2, will be securely connected together with an electrical terminal connection which is foolproof. Due to the fact that the strips are broad and relatively thin, there can be no lateral turning movement between the terminals of the two connected .parts, and there can be no endwise movement because the clamping fingers exactly fit in the recesses.

In Figure 4 I have shown a coating 30 of lacquer, synthetic resin paste or other plastic applied upon the interconnected terminal portions so as to completely coat the same and protect it. This assists in the maintenance of the connection, rendering the same safe from deterioration as a result of atmosphere variations and also additionally insuring the tightness of the connecting terminal portions.

Various changes in the shape, size and arrangement of parts of the connector and in the application of the same to any variety of electrical parts, etc., may be made to the form of the invention herein shown and described, without de- :parting from the spirit of the invention or scope of the claims.

I claim:

1. In an electrical connection, the combination of a pair of parts having electrically operatively connected terminal straps, each of said straps being of thin, wide, flat electrically conductive metal including a fiat body portion with uniformly spaced bendable clamping fingers along the opposed longitudinal side edges thereof in directly opposed pairs, the terminal straps being so arranged when connected that the fingers of each terminal portion are bent in in'terfltting relation exactly in snug fitting relation between adjacent fingers of the other terminal portion and over the opposite side of the body of said other terminal portion. 4

2.- An electrical connector and the like comprising a pair of relatively thin, wide, flat bendable metal straps, each of said straps from the extreme ends thereof being provided with a plurality of opposed pairs of fingers projecting in spaced relation from the opposite edges thereof, the spaces between the adjacent pairs of fingers along each edge being entirely unobstructed and the fingers 1 being of uniform width and the unobstructed spaces between adjacent fingers along each edge of each strap being of uniform width,

the two straps in connection being disposed side by side with the fingers of each strap opposite the spaces between the fingers of the other strap and bent thru the spaces of the first mentioned strap The following references are of record in the file of this patent:

UNITED STATES PATENTS 

